Finding the Fourth Proportional to 2,065.31, 3,098.50 and 1,198.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,065.31 : 3,098.50 = 1,198.88 : x
2. Step 2: Convert to fraction form
   2,065.31/3,098.50 = 1,198.88/x
3. Step 3: Cross multiply
   2,065.31x = 3,098.50 × 1,198.88
4. Step 4: Simplify right side
   2,065.31x = 3,714,711.19
5. Step 5: Solve for x
   x = 3,714,711.19/2,065.31
6. Step 6: Final answer
   x = 1,798.63